Shifting device for piers, &amp;c.



No. 700,600. Patented May 20, I902.

w. 0. BALDWIN 0. A. sum).

SHIFTING DEVICE FOR PIERS, 601;.

(A lication filed Dec. 17. 1901.

(No Model.)

5 Y E N R O T l. A

045' NORRIS PETERS co PNOTD-LITNQ, wasnmumn. a. c.

UNITED STATES PATENT OFFICE.

\VILLIAM D. BALDIVIN, OF NEW YORK,. AND AUGUST SUN DII, OF YONKERS, NEW YORK, ASSIGNORS TO OTIS ELEVATOR COMPANY, OF EAST ORANGE, NEIV JERSEY, A CORPORATION OFNEW JERSEY.

-SHIF'II'.ING-DEVICE FOR- PIERS, 84.0.

SPECIFICATION forming part of Letters PatentNo. 700,iOO, datedMay 20,1902;

Application filed maintain-1 9011. Serial no. 86,334. (No model.)

Be it known that we, WILLIAM D. BALD- WIN, residing in the city and county of New. York, and AUGUST SUNDH, residing at Yonk ers, in the county of Westchester, State of New'York, citizens of the United States, have invented certain new and useful Improve-' ments in Shifting Devices for Piers, &c.,' of. which the following is a specification. Our invention relates to capstans, and especially to those which are arranged in con-' nection'with piers or embankments to facilitate'the shifting of loads, vessels, &c.; and our invention consists in means whereby a capstan may be driven by friction gears adapted to be thrown out of connection as desired, and especially in electrical means for operating the parts, all as fully set forth here inafter and as illustrated in the accompanying drawings, in which Figure 1 is a sectional elevation of partjof the pier or embankment, showing a capstan and operating devices arranged within a vault in the pier; and Fig. 2 is a plan view showing the main operating parts and electrical connections between the operating devices. The capstan B is mounted ontheupper end 'of a shaft '7, whichha's itsbearings within a chamber or vault X below the footway A, the cap or cover 9 of the'vaultbeing flush with and forming part of; the footway. Upon theshaftiZ-is mounted a frictiondrum 40, adapted to engage a friction pulley or pinion 41, carried by the shaft 3 of a motor M, which for some'purposes may be of any suitable character,butlwhichis shown as anelectric motor, towhichp'ass the proper series ofconducting wires 42.

ITO aZZwhom it may concern:

lhe motor M-is provided with trunnions.

43, rocking in bearings 44, the trunnions be- .ing so arranged that'the weight of the motor tends toswingit outward in the direction of; the arrow, Fig. 1', to carry the pulley 41 away from the drum 40.

In order to start the capstan in motion, 'itis necessary to bring the friction-gears into engagement, and we therefore provide an engine L, which may be put into. operation to carry the main motor-engine M in the revet-st direction from thatpointedout by the arrow. As shown,this engine L consists of 'asolenoid 66, the core '45 ofwhich'is connectedby a link t6 with the frame of the motor-engine M, and when the solenoid is energized the core will be drawn inward, and thereby swing the motor M, sojas to bring the gearsinto engagement; j

- A band-brake device Nisprovided with a band 47, encircling a pulley 4 8up'onthe shaft 7, the ends of the band being connected to a lever 50,"vibrating on a fixed pivot .51, and with the outer end of this lever is'falso connected the link 46, so that as the motor M is swung away from the'drum 40 the lever will be turned in the direction of its arrow, Fig. 2, to apply, the brake, and when the motor M is carried'toward the drum to start the latter the brake will be relaxed.

In order to start the motor M in either direction, we make use of a suitable control device P, the character of which will depend upon the character of the motor M. In the case of an electric motor the said control de vice consists of two solenoids 52 53, having a common core 54, which is connected to an arm- 55 upon a rock-shaft 56 of the usual electric switch device 0. Springs 57 tend to hold the arm 55 and its connected switch in to one side or the. other as one or the other of the solenoids is'x'cit'ed the switch will make the cir'cuitinone direction or the other, so as to start the motor in one direction or the other, infa manner too well understood in connection with electric hoisting apparatus to needfurther description.

' In connection with a capstan-shifting device, where it is necessar'yto throwa rope or cable in one direction or the other over the top of the capstan andto tightenand loosen it from difierent'points,itis' desirable to be able to control the movements of the capstan with the operator stationed at difierent points in relation to the latter. We therefore provide a series of operating devices Q arranged at different points in the footway or in the cap or roof of the vault, so that the operator by a pressure of the foot can start the engine in either direction or arrestits motion atwill. In theuconstruction shown eachoperating device consists of two spring-supported pins 58 59, having terminals at their lower ends which are connected in series with each other and with the terminals of all the control devices on the conductor 60, connected with the leading-in wire 61.

Beneath the terminals of the pins 58 and 59 are contacts 62 63, one contact 62 being connected with the negative leading-in wire 64 in series with the solenoids .52 and 66 and also with the pins 58 by conductor 67, while a return-conductor 68 includes in circuit all of the contacts below the pins 59 and a conductor 70, which includes in series the sole noids. 53 and 66 and extends to the leading in wire. By this arrangement pressure upon any one of the pins 58 completes a circuit first through the solenoid 52 to swing the arm 55 and start the motor M in one direction and then through solenoid 66 to swing the motor and bring the pulley 41 into connection with the drum 40, while pressure upon one of the pins 59 will complete a circuit including the solenoids 53 and 66, tothereby swing the arm 55 in the opposite direction, starting the motor M in the opposite direction, butalso swinging said motor inward to bring the gears into frictional engagement. The removal of pressure upon either one of the pins will tend to break the circuit and cause the motion of the engine to be arrested. There is not only an arrest of the motion of the engine which will result in arresting the driving of the capstan, but it will be seen that there is also a disconnecting of the driving-gear, which will leave the capstan free to turn except so far as it may be resisted by the action of the brake.

- It will be evident that some of the features above specified may be used in connection with capstans arranged upon board ship or elsewhere.

WVithout limiting ourselves to the precise construction and arrangement of parts shown, we claim as our ,invention- 1-. The combination with a capstan,- of a shaft secured thereto and extending downward into a vault or chamber, a f riction-drum on said shaft, a driving-engine having a shaft carrying a friction-pinion, and means for shifting the position of the engine to carry the friction-pinion into and out of engagement with said drum, substantially as set forth.

2. The combination with a capstan, of a shaft extending downward therefrom and carrying a friction-drum, a motor carrying a friction-pinion, said motor being pivotally supported to swing the pinion away from the drum, and means for swinging the motor to bring the pinion into engagement with the drum, substantially as set forth.

3. The combination with a capstan, of a shaft extendingdownward therefrom and carrying a friction-drum, a motor carrying a friction-pinion, said motor being pivotally suptially as set forth.

5. The combination with a capstan, of a shaft secured thereto and extending downward into a vault orchambena friction-drum on said shaft, an electric driving-engine having a shaft carrying a friction pinion, an electrio motor for shifting the position of the en gine to carry the friction=pinion into and out of engagement with said drum, switches, and a control device adjacent to the capstan for operating said switches, substantially as set forth.

6. The combiriation with a capstan, of a shaft secured thereto and extending downward into a vault or chamber, a friction-drum on said shaft, an electric driving-engine. having a shaft carrying a friction-pinion, an electric motor for shifting the position, of the engine to carry the friction-pinion into and out of engagement with said drum, a series of switches, and control devices adjacent to the capstan for operating said switches, substantially as set forth;

7. The combination with a shaft support-' ing a capstan at one end and carrying-a friction-drum, of an electric-motor engine having a shaft carrying a friction-pinion and movable to and from said drum, an electric motor for shifting the engine, a reversing-switch, an electric motor for shifting said switch, and means for operating the switch-controlling motor from different positions adjacent to the capstan, substantially as set forth.

8. The combination with a shaft support= ing a capstan at one end and carryingafriction-drum, of an electric-motor engine having a shaft carrying a'friction-pinion and movable to and. from said drum, an electric motor for shifting the engine,- a control device for stop ping, starting and reversing the engine, an

electric motor for actuating the control de:

vice, and means for putting the control-device motor into and out of operation from difierent points adjacent to the capstan, substantially as set forth. I

9. The combination of acapstan, shaft,friction-gears, movable electric engine, electric motors for shifting the engine and controlling the passage of current thereto, and a brake connected to the engine to berelaxed as the gears are brought into engagement, substantially as set forth. 1

10. The combination with a capstan,motorits engine, gears, and electric control device, of solenoids and cores connected to actuate the control device, and means adjacent to the capstan for making and breaking at will circuits including the solenoids, substantially as set forth.

11. The combination with a capstan, motorengine, gears, and electric control device,-of solenoids and cores connected to actuate the control device, a brake and solenoid for operating the same, and means adjacent to the capstan for making and breaking at will circnits including the solenoids, substantially as set forth.

12. The combination with a capstan, movable engine, gears, control device, and electric motors for shifting the engine and actuating the control device, of a plurality of circuit- WILLIAM D. BALDWIN. AUGUST SUNDH.

Witnesses:

W. H. BRADY, H. R. MARSDEN. 

